   it doesn't take the `java.util.Random` instance"
   [inst & {:keys [train-fn test-fn randomize-fn]}]
   (let [train-state (atom nil)]
-   (proxy [Instances] [inst]
-     (randomize [rand]
-       (log/infof "randominzing: %s with fn=%s" rand randomize-fn)
-       (if randomize-fn (randomize-fn rand)))
-     (trainCV [folds fold rand]
-       (log/debugf "folds: %d, fold no: %d" folds fold)
-       (let [res (proxy-super trainCV folds fold rand)]
-         (if train-fn
-           (train-fn res train-state inst folds fold)
-           res)))
-     (testCV [folds fold]
-       (log/debugf "folds: %d, fold no: %d" folds fold)
-       (let [res (proxy-super testCV folds fold)]
-         (if test-fn
-           (test-fn res train-state inst folds fold)
-           res))))))
+    (proxy [Instances] [inst]
+      (randomize [rand]
+        (log/infof "randominzing: %s with fn=%s" rand randomize-fn)
+        (if randomize-fn (randomize-fn rand)))
+      (trainCV [folds fold rand]
+        (log/debugf "folds: %d, fold no: %d" folds fold)
+        (let [res (proxy-super trainCV folds fold rand)]
+          (if train-fn
+            (train-fn res train-state inst folds fold)
+            res)))
+      (testCV [folds fold]
+        (log/debugf "folds: %d, fold no: %d" folds fold)
+        (let [res (proxy-super testCV folds fold)]
+          (if test-fn
+            (test-fn res train-state inst folds fold)
+            res))))))
 
 (defn instances
   "Create a new `weka.core.Instances` instance.

         (log/infof \"langid: %s for: %s: res: %s\" val inst rval)
         (if rval 1 0)))
  (terse-results lang-baseline meta-set))
```"
  {:style/indent 1
   :forms '[(let-classifier fnspecs* exprs*)]
   :special-form true}

   :tree '("weka.classifiers.misc.HyperPipes"
           "weka.classifiers.trees.RandomTree"
           "weka.classifiers.trees.RandomForest"
                                        ;"weka.classifiers.trees.NBTree"
           "weka.classifiers.trees.REPTree")
   :zeror '("weka.classifiers.rules.ZeroR")
   :svm '("weka.classifiers.functions.LibSVM")
